PULS

Redundancy unit

DIMENSION series

Y-series

Dual-input redundancy module (2 x inputs + 1 x output)

built-in decoupl. MOSFET (for 1+1 or N+1 redundancy)
ATEX approval

8.4Vdc-36.4Vdc (12Vdc / 24Vdc nom.)

40A (at 28Vdc)
1A/+60°C...+70°C (derating)

12-28Vdc (12Vdc / 24Vdc nom.)

screw-clamp connections

short-circuit protection (26A threshold at 6V)
Series / parallel operation -- 1+1 Redundancy Use of 2 identical power supplies in parallel to provide continued operation following most failures in a single power supply. The 2 power supply outputs should be isolated from each other by utilizing diodes or other switching arrangements. N+1 Redundancy Use of 3 or more identical power supplies in parallel to provide continued operation following most failures in a single power supply. All power supply outputs should be isolated from each other by utilizing diodes or other switching arrangements.

DIN rail mounting

W36mm x H124mm x D127mm

36 mm

-40...+70 °C

1000A peak max. inrush (at 8.4-36.4Vdc input)

Suitable for all DIMENSION power supplies except QT20 and QTD20 series

(8.4-36.4Vdc input; 2x10A input) 1.7 W
(8.4-36.4Vdc input; 20A input) 2.4 W

Commercialized

YR40242

(output stage) 320 μF

CE marking
UL 508
UL 60950-1
IEC 60950-1 CB-Scheme
IECEx
ATEX
Class I Div. 2 HazLoc
ABS Marine
EAC Registration
EN 61000-6-1 Immunity for residential environments
EN 61000-6-2 Immunity for industrial environments
EN 61000-6-3 Emission for residential environments

(at 40°C; 20A output; 2x10A input) 672000 hours
(at 40°C; 20A output; 2x20A input) 255000 hours
(at 25°C; 40A output; 2x10A input) 1900000 hours
(at 25°C; 40A output; 2x20A input) 720000 hours

For N+1 and 1+1 redundant systems
Dual input with single output
Suitable for all DIMENSION power supplies except QT20 and QTD20 series
Only 72mV voltage drop at 20A output current
Only 1.7W loss at 20A and 5.9W at 40A output current
160% (65A) peak load capability
Reverse input polarity protection
Full power between -40°C and +60°C
Width only 36mm
Rugged metal housing
Easy wiring;
Distribution terminal for negative pole included
3 Year warranty
The YR40.242 is a redundancy module which can be used to build 1+1 and N+1 redundant system. It is equipped with 2 input channels which can be connected to power supplies with up to 20A output current and 1 output which can carry nominal currents up to 40A. In addition to the YR40.242 the YR40.241 is also available. This unit has an additional circuit included which generates a supply voltage for the internal mosfets even when the output of the unit is in a short circuit condition. This makes the unit suitable for any power supplies. The novelty of this redundancy module is the utilization of mosfets instead of diodes for the decoupling of the 2 input channels. This reduces the heat generation and the voltage drop between input and output. The redundancy module does not require an additional auxiliary voltage. Due to the low power losses the unit is very slender and only requires 36mm width on the DIN-rail. Large connection terminals allow for a safe and fast installation. The large international approval package makes this unit suitable for nearly every application.

72mVpp (20Hz...20MHz; 50Ω)

7234000h (at 40°C; 2x10A input; MTBF SN 29500 IEC 61709)
4533000h (at 40°C; 2x20A input; MTBF SN 29500 IEC 61709)
12445000h (at 25°C; 2x10A input; MTBF SN 29500 IEC 61709)
8218000h (at 25°C; 2x20A input; MTBF SN 29500 IEC 61709)
325000h (at 40°C; 2x10A input; MTBF MIL HDBK 217F GB40)
294000h (at 40°C; 2x20A input; MTBF MIL HDBK 217F GB40)
438000h (at 25°C; 2x10A input; MTBF MIL HDBK 217F GB25)
392000h (at 25°C; 2x20A input; MTBF MIL HDBK 217F GB25)
1588000h (at 40°C; 2x10A input; MTBF MIL HDBK 217F GF40)
1457000h (at 40°C; 2x20A input; MTBF MIL HDBK 217F GF40)
2159000h (at 25°C; 2x10A input; MTBF MIL HDBK 217F GF25)
1964000h (at 25°C; 2x20A input; MTBF MIL HDBK 217F GF25)